A plane one thousand feet below the certain bench mark known as the C.D. bench mark is the datum plane or base line of the city for the purpose of establishing and designating the official grades of the streets, alleys, avenues and sewers and for any other public works within the city and for measuring all other elevations or surface points herein.

(Prior code § 8021)

The official bench mark or datum plane monument within the city shall be the top of that certain plug placed in the top of a pipe, situated at the southeast corner of the California Development Company, situated on Lot 13, Block 72, in the city.

(Prior code § 8022)

The elevation of the bench mark or datum monument designated by this chapter is one thousand feet above the city datum plane.

(Prior code § 8023)